DP

Douglas S. Perkins

3M: 1 patents #327 of 1,069Top 35%
🗺 Texas: #1,517 of 5,943 inventorsTop 30%
Overall (1997): #157,778 of 185,788Top 85%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5646370 Permanent attachment of grounding wire — 1997-07-08